| Titre : |
Effects of age on the structure ad bleaching/dyeing behaviour of hair |
| Type de document : |
texte imprimé |
| Auteurs : |
Haona Wang, Auteur ; Li Kong, Auteur ; Honghui Xia, Auteur ; Jie Min Huang, Auteur ; Bo Deng, Auteur ; Heng Pan, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 226-233 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Âge
Caractérisation
Cheveux -- analyse
Cheveux -- Propriétés mécaniques
Cheveux -- Teinture
Décoloration
Etudes comparatives
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
The structure and bleaching/dyeing behaviour of hair sampled from people of various ages were investigated to provide guidance for wig-making. Hair surface and cross-sectional morphology were investigated by scanning electron microscopy, whereas the number density and size of melanin granules were evaluated by transmission electron microscopy. The suitability of hair for dyeing was determined by the trade-off between the fracture strength and lightness of bleached samples. Hair collected from 26-year-olds showed the highest number density and the lowest size of melanin granules, thus featuring the lowest mechanical strength reduction and the highest lightness increase after bleaching. The optimal bleaching conditions for such hair were identified as bleaching time = 80 minutes, hydrogen peroxide (H2O2) concentration = 60 mL/L, and bleaching temperature = 75°C. Considering its resilience to damage and favourable dyeing behaviour, hair sampled from 26-year-olds was concluded to be most suitable for wig-making. Thus, the present research provides guidance for the selection of raw materials for wig-making. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Rinsing of human hairs - Pretreatment and bleaching of human hairs - Dyeing of human hairs - Hair characterisation
- RESULTS AND DISCUSSION : Effects of age on hair surface and cross-sectional morphology - Effects of hair age on the number density and average area of melanin granules - Effects of bleaching on hair fracture strength, lightness, and regularity - Optimal bleaching conditions for 26-year-old hair - Comparison of control, bleached, and dyed 26-year-old hair |
| DOI : |
https://doi.org/10.1111/cote.12525 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12525 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36089 |
in COLORATION TECHNOLOGY > Vol. 137, N° 3 (06/2021) . - p. 226-233
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